<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
  <meta charset="UTF-8">
  <title>登录页面</title>
</head>
<body>
<form action="userLogin" method="post">
  <input name="username123" value="zhangsan"><br>
  <input name="password234" value="1234"><br>
  <input type="submit" value="登录">
</form>
</body>
</html>